Before beginning this tutorial you will need to jailbreak your device.
Press to launch Cydia from your SpringBoard.
Press to select Sections from the tabs at the bottom of the screen.
Press to choose Tweaks from the list of Sections.
Tap to select Browser Changer from the list of Packages
Press the Install button at the top right of the screen.
Press the Confirm button to begin installation.
Once installation has completed successfully click the large Restart Springboard button.
After your Springboard has restarted press the Settings icon.
Choose Browser Changer from the Settings Menu
Press Selected Browser and choose your new default browser from the list.